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        <a href="../.." >触摸事件</a>
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                                <section class="normal markdown-section">
                                
                                <h1 id="&#x89E6;&#x6478;&#x4E8B;&#x4EF6;">&#x89E6;&#x6478;&#x4E8B;&#x4EF6;</h1>
<h2 id="&#x89E6;&#x6478;&#x64CD;&#x4F5C;&#x6982;&#x8FF0;">&#x89E6;&#x6478;&#x64CD;&#x4F5C;&#x6982;&#x8FF0;</h2>
<p>&#x6D4F;&#x89C8;&#x5668;&#x7684;&#x89E6;&#x6478; API &#x7531;&#x4E09;&#x4E2A;&#x90E8;&#x5206;&#x7EC4;&#x6210;&#x3002;</p>
<ul>
<li>Touch&#xFF1A;&#x4E00;&#x4E2A;&#x89E6;&#x6478;&#x70B9;</li>
<li>TouchList&#xFF1A;&#x591A;&#x4E2A;&#x89E6;&#x6478;&#x70B9;&#x7684;&#x96C6;&#x5408;</li>
<li>TouchEvent&#xFF1A;&#x89E6;&#x6478;&#x5F15;&#x53D1;&#x7684;&#x4E8B;&#x4EF6;&#x5B9E;&#x4F8B;</li>
</ul>
<p><code>Touch</code>&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x7528;&#x6765;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#xFF08;&#x4E00;&#x6839;&#x624B;&#x6307;&#x6216;&#x8005;&#x4E00;&#x6839;&#x89E6;&#x6478;&#x7B14;&#xFF09;&#xFF0C;&#x5305;&#x62EC;&#x4F4D;&#x7F6E;&#x3001;&#x5927;&#x5C0F;&#x3001;&#x5F62;&#x72B6;&#x3001;&#x538B;&#x529B;&#x3001;&#x76EE;&#x6807;&#x5143;&#x7D20;&#x7B49;&#x5C5E;&#x6027;&#x3002;&#x6709;&#x65F6;&#xFF0C;&#x89E6;&#x6478;&#x52A8;&#x4F5C;&#x7531;&#x591A;&#x4E2A;&#x89E6;&#x6478;&#x70B9;&#xFF08;&#x591A;&#x6839;&#x624B;&#x6307;&#xFF09;&#x7EC4;&#x6210;&#xFF0C;&#x591A;&#x4E2A;&#x89E6;&#x6478;&#x70B9;&#x7684;&#x96C6;&#x5408;&#x7531;<code>TouchList</code>&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x8868;&#x793A;&#x3002;<code>TouchEvent</code>&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x4EE3;&#x8868;&#x7531;&#x89E6;&#x6478;&#x5F15;&#x53D1;&#x7684;&#x4E8B;&#x4EF6;&#xFF0C;&#x53EA;&#x6709;&#x89E6;&#x6478;&#x5C4F;&#x624D;&#x4F1A;&#x5F15;&#x53D1;&#x8FD9;&#x4E00;&#x7C7B;&#x4E8B;&#x4EF6;&#x3002;</p>
<p>&#x5F88;&#x591A;&#x65F6;&#x5019;&#xFF0C;&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x548C;&#x9F20;&#x6807;&#x4E8B;&#x4EF6;&#x540C;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x5373;&#x4F7F;&#x8FD9;&#x4E2A;&#x65F6;&#x5019;&#x5E76;&#x6CA1;&#x6709;&#x7528;&#x5230;&#x9F20;&#x6807;&#x3002;&#x8FD9;&#x662F;&#x4E3A;&#x4E86;&#x8BA9;&#x90A3;&#x4E9B;&#x53EA;&#x5B9A;&#x4E49;&#x9F20;&#x6807;&#x4E8B;&#x4EF6;&#x3001;&#x6CA1;&#x6709;&#x5B9A;&#x4E49;&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7684;&#x4EE3;&#x7801;&#xFF0C;&#x5728;&#x89E6;&#x6478;&#x5C4F;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#x4ECD;&#x7136;&#x80FD;&#x7528;&#x3002;&#x5982;&#x679C;&#x60F3;&#x907F;&#x514D;&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#xFF0C;&#x53EF;&#x4EE5;&#x7528;<code>event.preventDefault</code>&#x65B9;&#x6CD5;&#x963B;&#x6B62;&#x53D1;&#x51FA;&#x9F20;&#x6807;&#x4E8B;&#x4EF6;&#x3002;</p>
<h2 id="touch-&#x63A5;&#x53E3;">Touch &#x63A5;&#x53E3;</h2>
<h3 id="touch-&#x63A5;&#x53E3;&#x6982;&#x8FF0;">Touch &#x63A5;&#x53E3;&#x6982;&#x8FF0;</h3>
<p>Touch &#x63A5;&#x53E3;&#x4EE3;&#x8868;&#x5355;&#x4E2A;&#x89E6;&#x6478;&#x70B9;&#x3002;&#x89E6;&#x6478;&#x70B9;&#x53EF;&#x80FD;&#x662F;&#x4E00;&#x6839;&#x624B;&#x6307;&#xFF0C;&#x4E5F;&#x53EF;&#x80FD;&#x662F;&#x4E00;&#x6839;&#x89E6;&#x6478;&#x7B14;&#x3002;</p>
<p>&#x6D4F;&#x89C8;&#x5668;&#x539F;&#x751F;&#x63D0;&#x4F9B;<code>Touch</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#xFF0C;&#x7528;&#x6765;&#x751F;&#x6210;<code>Touch</code>&#x5B9E;&#x4F8B;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> touch = <span class="hljs-keyword">new</span> Touch(touchOptions);
</code></pre>
<p><code>Touch</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#x63A5;&#x53D7;&#x4E00;&#x4E2A;&#x914D;&#x7F6E;&#x5BF9;&#x8C61;&#x4F5C;&#x4E3A;&#x53C2;&#x6570;&#xFF0C;&#x5B83;&#x6709;&#x4EE5;&#x4E0B;&#x5C5E;&#x6027;&#x3002;</p>
<ul>
<li><code>identifier</code>&#xFF1A;&#x5FC5;&#x9700;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6574;&#x6570;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x7684;&#x552F;&#x4E00; ID&#x3002;</li>
<li><code>target</code>&#xFF1A;&#x5FC5;&#x9700;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x5143;&#x7D20;&#x8282;&#x70B9;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x5F00;&#x59CB;&#x65F6;&#x6240;&#x5728;&#x7684;&#x7F51;&#x9875;&#x5143;&#x7D20;&#x3002;</li>
<li><code>clientX</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x6D4F;&#x89C8;&#x5668;&#x7A97;&#x53E3;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6C34;&#x5E73;&#x8DDD;&#x79BB;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;0&#x3002;</li>
<li><code>clientY</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x6D4F;&#x89C8;&#x5668;&#x7A97;&#x53E3;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x5782;&#x76F4;&#x8DDD;&#x79BB;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;0&#x3002;</li>
<li><code>screenX</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x5C4F;&#x5E55;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6C34;&#x5E73;&#x8DDD;&#x79BB;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;0&#x3002;</li>
<li><code>screenY</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x5C4F;&#x5E55;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x5782;&#x76F4;&#x8DDD;&#x79BB;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;0&#x3002;</li>
<li><code>pageX</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x7F51;&#x9875;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6C34;&#x5E73;&#x4F4D;&#x7F6E;&#xFF08;&#x5373;&#x5305;&#x62EC;&#x9875;&#x9762;&#x7684;&#x6EDA;&#x52A8;&#x8DDD;&#x79BB;&#xFF09;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;0&#x3002;</li>
<li><code>pageY</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x7F51;&#x9875;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x5782;&#x76F4;&#x4F4D;&#x7F6E;&#xFF08;&#x5373;&#x5305;&#x62EC;&#x9875;&#x9762;&#x7684;&#x6EDA;&#x52A8;&#x8DDD;&#x79BB;&#xFF09;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;0&#x3002;</li>
<li><code>radiusX</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x5468;&#x56F4;&#x53D7;&#x5230;&#x5F71;&#x54CD;&#x7684;&#x692D;&#x5706;&#x8303;&#x56F4;&#x7684; X &#x8F74;&#x534A;&#x5F84;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;0&#x3002;</li>
<li><code>radiusY</code>&#xFF1A;&#x53EF;&#x9009;&#xFF1A;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x5468;&#x56F4;&#x53D7;&#x5230;&#x5F71;&#x54CD;&#x7684;&#x692D;&#x5706;&#x8303;&#x56F4;&#x7684; Y &#x8F74;&#x534A;&#x5F84;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;0&#x3002;</li>
<li><code>rotationAngle</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x533A;&#x57DF;&#x7684;&#x692D;&#x5706;&#x7684;&#x65CB;&#x8F6C;&#x89D2;&#x5EA6;&#xFF0C;&#x5355;&#x4F4D;&#x4E3A;&#x5EA6;&#x6570;&#xFF0C;&#x5728;0&#x5230;90&#x5EA6;&#x4E4B;&#x95F4;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;0&#x3002;</li>
<li><code>force</code>&#xFF1A;&#x53EF;&#x9009;&#xFF0C;&#x7C7B;&#x578B;&#x4E3A;&#x6570;&#x503C;&#xFF0C;&#x8303;&#x56F4;&#x5728;<code>0</code>&#x5230;<code>1</code>&#x4E4B;&#x95F4;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x538B;&#x529B;&#x3002;<code>0</code>&#x4EE3;&#x8868;&#x6CA1;&#x6709;&#x538B;&#x529B;&#xFF0C;<code>1</code>&#x4EE3;&#x8868;&#x786C;&#x4EF6;&#x6240;&#x80FD;&#x8BC6;&#x522B;&#x7684;&#x6700;&#x5927;&#x538B;&#x529B;&#xFF0C;&#x9ED8;&#x8BA4;&#x4E3A;<code>0</code>&#x3002;</li>
</ul>
<h3 id="touch-&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;">Touch &#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;</h3>
<p><strong>&#xFF08;1&#xFF09;Touch.identifier</strong></p>
<p><code>Touch.identifier</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x6574;&#x6570;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x7684;&#x552F;&#x4E00; ID&#x3002;&#x8FD9;&#x4E2A;&#x503C;&#x5728;&#x6574;&#x4E2A;&#x89E6;&#x6478;&#x8FC7;&#x7A0B;&#x4FDD;&#x6301;&#x4E0D;&#x53D8;&#xFF0C;&#x76F4;&#x5230;&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7ED3;&#x675F;&#x3002;</p>
<pre><code class="lang-javascript">someElement.addEventListener(<span class="hljs-string">&apos;touchmove&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-keyword">for</span> (<span class="hljs-keyword">var</span> i = <span class="hljs-number">0</span>; i &lt; e.changedTouches.length; i++) {
    <span class="hljs-built_in">console</span>.log(e.changedTouches[i].identifier);
  }
}, <span class="hljs-literal">false</span>);
</code></pre>
<p><strong>&#xFF08;2&#xFF09;Touch.screenX&#xFF0C;Touch.screenY&#xFF0C;Touch.clientX&#xFF0C;Touch.clientY&#xFF0C;pageX&#xFF0C;pageY</strong></p>
<p><code>Touch.screenX</code>&#x5C5E;&#x6027;&#x548C;<code>Touch.screenY</code>&#x5C5E;&#x6027;&#xFF0C;&#x5206;&#x522B;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x5C4F;&#x5E55;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6A2A;&#x5750;&#x6807;&#x548C;&#x7EB5;&#x5750;&#x6807;&#xFF0C;&#x4E0E;&#x9875;&#x9762;&#x662F;&#x5426;&#x6EDA;&#x52A8;&#x65E0;&#x5173;&#x3002;</p>
<p><code>Touch.clientX</code>&#x5C5E;&#x6027;&#x548C;<code>Touch.clientY</code>&#x5C5E;&#x6027;&#xFF0C;&#x5206;&#x522B;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x6D4F;&#x89C8;&#x5668;&#x89C6;&#x53E3;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6A2A;&#x5750;&#x6807;&#x548C;&#x7EB5;&#x5750;&#x6807;&#xFF0C;&#x4E0E;&#x9875;&#x9762;&#x662F;&#x5426;&#x6EDA;&#x52A8;&#x65E0;&#x5173;&#x3002;</p>
<p><code>Touch.pageX</code>&#x5C5E;&#x6027;&#x548C;<code>Touch.pageY</code>&#x5C5E;&#x6027;&#xFF0C;&#x5206;&#x522B;&#x8868;&#x793A;&#x89E6;&#x6478;&#x70B9;&#x76F8;&#x5BF9;&#x4E8E;&#x5F53;&#x524D;&#x9875;&#x9762;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6A2A;&#x5750;&#x6807;&#x548C;&#x7EB5;&#x5750;&#x6807;&#xFF0C;&#x5305;&#x542B;&#x4E86;&#x9875;&#x9762;&#x6EDA;&#x52A8;&#x5E26;&#x6765;&#x7684;&#x4F4D;&#x79FB;&#x3002;</p>
<p><strong>&#xFF08;3&#xFF09;Touch.radiusX&#xFF0C;Touch.radiusY&#xFF0C;Touch.rotationAngle</strong></p>
<p><code>Touch.radiusX</code>&#x5C5E;&#x6027;&#x548C;<code>Touch.radiusY</code>&#x5C5E;&#x6027;&#xFF0C;&#x5206;&#x522B;&#x8FD4;&#x56DE;&#x89E6;&#x6478;&#x70B9;&#x5468;&#x56F4;&#x53D7;&#x5230;&#x5F71;&#x54CD;&#x7684;&#x692D;&#x5706;&#x8303;&#x56F4;&#x7684; X &#x8F74;&#x534A;&#x5F84;&#x548C; Y &#x8F74;&#x534A;&#x5F84;&#xFF0C;&#x5355;&#x4F4D;&#x4E3A;&#x50CF;&#x7D20;&#x3002;&#x4E58;&#x4EE5; 2 &#x5C31;&#x53EF;&#x4EE5;&#x5F97;&#x5230;&#x89E6;&#x6478;&#x8303;&#x56F4;&#x7684;&#x5BBD;&#x5EA6;&#x548C;&#x9AD8;&#x5EA6;&#x3002;</p>
<p><code>Touch.rotationAngle</code>&#x5C5E;&#x6027;&#x8868;&#x793A;&#x89E6;&#x6478;&#x533A;&#x57DF;&#x7684;&#x692D;&#x5706;&#x7684;&#x65CB;&#x8F6C;&#x89D2;&#x5EA6;&#xFF0C;&#x5355;&#x4F4D;&#x4E3A;&#x5EA6;&#x6570;&#xFF0C;&#x5728;<code>0</code>&#x5230;<code>90</code>&#x5EA6;&#x4E4B;&#x95F4;&#x3002;</p>
<p>&#x4E0A;&#x9762;&#x8FD9;&#x4E09;&#x4E2A;&#x5C5E;&#x6027;&#x5171;&#x540C;&#x5B9A;&#x4E49;&#x4E86;&#x7528;&#x6237;&#x4E0E;&#x5C4F;&#x5E55;&#x63A5;&#x89E6;&#x7684;&#x533A;&#x57DF;&#xFF0C;&#x5BF9;&#x4E8E;&#x63CF;&#x8FF0;&#x624B;&#x6307;&#x8FD9;&#x4E00;&#x7C7B;&#x975E;&#x7CBE;&#x786E;&#x7684;&#x89E6;&#x6478;&#xFF0C;&#x5F88;&#x6709;&#x5E2E;&#x52A9;&#x3002;&#x6307;&#x5C16;&#x63A5;&#x89E6;&#x5C4F;&#x5E55;&#xFF0C;&#x89E6;&#x6478;&#x8303;&#x56F4;&#x4F1A;&#x5F62;&#x6210;&#x4E00;&#x4E2A;&#x692D;&#x5706;&#xFF0C;&#x8FD9;&#x4E09;&#x4E2A;&#x5C5E;&#x6027;&#x5C31;&#x7528;&#x6765;&#x63CF;&#x8FF0;&#x8FD9;&#x4E2A;&#x692D;&#x5706;&#x533A;&#x57DF;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x793A;&#x4F8B;&#x3002;</p>
<pre><code class="lang-javascript">div.addEventListener(<span class="hljs-string">&apos;touchstart&apos;</span>, rotate);
div.addEventListener(<span class="hljs-string">&apos;touchmove&apos;</span>, rotate);
div.addEventListener(<span class="hljs-string">&apos;touchend&apos;</span>, rotate);

<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">rotate</span>(<span class="hljs-params">e</span>) </span>{
  <span class="hljs-keyword">var</span> touch = e.changedTouches.item(<span class="hljs-number">0</span>);
  e.preventDefault();

  src.style.width = touch.radiusX * <span class="hljs-number">2</span> + <span class="hljs-string">&apos;px&apos;</span>;
  src.style.height = touch.radiusY * <span class="hljs-number">2</span> + <span class="hljs-string">&apos;px&apos;</span>;
  src.style.transform = <span class="hljs-string">&apos;rotate(&apos;</span> + touch.rotationAngle + <span class="hljs-string">&apos;deg)&apos;</span>;
};
</code></pre>
<p><strong>&#xFF08;4&#xFF09;Touch.force</strong></p>
<p><code>Touch.force</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;<code>0</code>&#x5230;<code>1</code>&#x4E4B;&#x95F4;&#x7684;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x538B;&#x529B;&#x3002;<code>0</code>&#x4EE3;&#x8868;&#x6CA1;&#x6709;&#x538B;&#x529B;&#xFF0C;<code>1</code>&#x4EE3;&#x8868;&#x786C;&#x4EF6;&#x6240;&#x80FD;&#x8BC6;&#x522B;&#x7684;&#x6700;&#x5927;&#x538B;&#x529B;&#x3002;</p>
<p><strong>&#xFF08;5&#xFF09;Touch.target</strong></p>
<p><code>Touch.target</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5143;&#x7D20;&#x8282;&#x70B9;&#xFF0C;&#x4EE3;&#x8868;&#x89E6;&#x6478;&#x53D1;&#x751F;&#x65F6;&#x6240;&#x5728;&#x7684;&#x90A3;&#x4E2A;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x3002;&#x5373;&#x4F7F;&#x89E6;&#x6478;&#x70B9;&#x5DF2;&#x7ECF;&#x79BB;&#x5F00;&#x4E86;&#x8FD9;&#x4E2A;&#x8282;&#x70B9;&#xFF0C;&#x8BE5;&#x5C5E;&#x6027;&#x4F9D;&#x7136;&#x4E0D;&#x53D8;&#x3002;</p>
<h2 id="touchlist-&#x63A5;&#x53E3;">TouchList &#x63A5;&#x53E3;</h2>
<p><code>TouchList</code>&#x63A5;&#x53E3;&#x8868;&#x793A;&#x4E00;&#x7EC4;&#x89E6;&#x6478;&#x70B9;&#x7684;&#x96C6;&#x5408;&#x3002;&#x5B83;&#x7684;&#x5B9E;&#x4F8B;&#x662F;&#x4E00;&#x4E2A;&#x7C7B;&#x4F3C;&#x6570;&#x7EC4;&#x7684;&#x5BF9;&#x8C61;&#xFF0C;&#x6210;&#x5458;&#x662F;<code>Touch</code>&#x7684;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#xFF0C;&#x8868;&#x793A;&#x6240;&#x6709;&#x89E6;&#x6478;&#x70B9;&#x3002;&#x7528;&#x6237;&#x7528;&#x4E09;&#x6839;&#x624B;&#x6307;&#x89E6;&#x6478;&#xFF0C;&#x4EA7;&#x751F;&#x7684;<code>TouchList</code>&#x5B9E;&#x4F8B;&#x5C31;&#x4F1A;&#x5305;&#x542B;&#x4E09;&#x4E2A;&#x6210;&#x5458;&#xFF0C;&#x6BCF;&#x6839;&#x624B;&#x6307;&#x7684;&#x89E6;&#x6478;&#x70B9;&#x5BF9;&#x5E94;&#x4E00;&#x4E2A;<code>Touch</code>&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x3002;</p>
<p>&#x5B83;&#x7684;&#x5B9E;&#x4F8B;&#x4E3B;&#x8981;&#x901A;&#x8FC7;&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7684;<code>TouchEvent.touches</code>&#x3001;<code>TouchEvent.changedTouches</code>&#x3001;<code>TouchEvent.targetTouches</code>&#x8FD9;&#x51E0;&#x4E2A;&#x5C5E;&#x6027;&#x83B7;&#x53D6;&#x3002;</p>
<p>&#x5B83;&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;&#x548C;&#x5B9E;&#x4F8B;&#x65B9;&#x6CD5;&#x53EA;&#x6709;&#x4E24;&#x4E2A;&#x3002;</p>
<ul>
<li><code>TouchList.length</code>&#xFF1A;&#x6570;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6210;&#x5458;&#x6570;&#x91CF;&#xFF08;&#x5373;&#x89E6;&#x6478;&#x70B9;&#x7684;&#x6570;&#x91CF;&#xFF09;&#x3002;</li>
<li><code>TouchList.item()</code>&#xFF1A;&#x8FD4;&#x56DE;&#x6307;&#x5B9A;&#x4F4D;&#x7F6E;&#x7684;&#x6210;&#x5458;&#xFF0C;&#x5B83;&#x7684;&#x53C2;&#x6570;&#x662F;&#x8BE5;&#x6210;&#x5458;&#x7684;&#x4F4D;&#x7F6E;&#x7F16;&#x53F7;&#xFF08;&#x4ECE;&#x96F6;&#x5F00;&#x59CB;&#xFF09;&#x3002;</li>
</ul>
<h2 id="touchevent-&#x63A5;&#x53E3;">TouchEvent &#x63A5;&#x53E3;</h2>
<h3 id="&#x6982;&#x8FF0;">&#x6982;&#x8FF0;</h3>
<p>TouchEvent &#x63A5;&#x53E3;&#x7EE7;&#x627F;&#x4E86; Event &#x63A5;&#x53E3;&#xFF0C;&#x8868;&#x793A;&#x7531;&#x89E6;&#x6478;&#x5F15;&#x53D1;&#x7684;&#x4E8B;&#x4EF6;&#x5B9E;&#x4F8B;&#xFF0C;&#x901A;&#x5E38;&#x6765;&#x81EA;&#x89E6;&#x6478;&#x5C4F;&#x6216;&#x8F68;&#x8FF9;&#x677F;&#x3002;&#x9664;&#x4E86;&#x88AB;&#x7EE7;&#x627F;&#x7684;&#x5C5E;&#x6027;&#x4EE5;&#x5916;&#xFF0C;&#x5B83;&#x8FD8;&#x6709;&#x4E00;&#x4E9B;&#x81EA;&#x5DF1;&#x7684;&#x5C5E;&#x6027;&#x3002;</p>
<p>&#x6D4F;&#x89C8;&#x5668;&#x539F;&#x751F;&#x63D0;&#x4F9B;<code>TouchEvent()</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#xFF0C;&#x7528;&#x6765;&#x751F;&#x6210;&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7684;&#x5B9E;&#x4F8B;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">new</span> TouchEvent(type, options)
</code></pre>
<p><code>TouchEvent()</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#x53EF;&#x4EE5;&#x63A5;&#x53D7;&#x4E24;&#x4E2A;&#x53C2;&#x6570;&#xFF0C;&#x7B2C;&#x4E00;&#x4E2A;&#x53C2;&#x6570;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x8868;&#x793A;&#x4E8B;&#x4EF6;&#x7C7B;&#x578B;&#xFF1B;&#x7B2C;&#x4E8C;&#x4E2A;&#x53C2;&#x6570;&#x662F;&#x4E8B;&#x4EF6;&#x7684;&#x914D;&#x7F6E;&#x5BF9;&#x8C61;&#xFF0C;&#x8BE5;&#x53C2;&#x6570;&#x662F;&#x53EF;&#x9009;&#x7684;&#xFF0C;&#x5BF9;&#x8C61;&#x7684;&#x6240;&#x6709;&#x5C5E;&#x6027;&#x4E5F;&#x662F;&#x53EF;&#x9009;&#x7684;&#x3002;&#x9664;&#x4E86;<code>Event</code>&#x63A5;&#x53E3;&#x7684;&#x914D;&#x7F6E;&#x5C5E;&#x6027;&#xFF0C;&#x8BE5;&#x63A5;&#x53E3;&#x8FD8;&#x6709;&#x4E00;&#x4E9B;&#x81EA;&#x5DF1;&#x7684;&#x914D;&#x7F6E;&#x5C5E;&#x6027;&#x3002;</p>
<ul>
<li><code>touches</code>&#xFF1A;<code>TouchList</code>&#x5B9E;&#x4F8B;&#xFF0C;&#x4EE3;&#x8868;&#x6240;&#x6709;&#x7684;&#x5F53;&#x524D;&#x5904;&#x4E8E;&#x6D3B;&#x8DC3;&#x72B6;&#x6001;&#x7684;&#x89E6;&#x6478;&#x70B9;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x662F;&#x4E00;&#x4E2A;&#x7A7A;&#x6570;&#x7EC4;<code>[]</code>&#x3002;</li>
<li><code>targetTouches</code>&#xFF1A;<code>TouchList</code>&#x5B9E;&#x4F8B;&#xFF0C;&#x4EE3;&#x8868;&#x6240;&#x6709;&#x5904;&#x5728;&#x89E6;&#x6478;&#x7684;&#x76EE;&#x6807;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x3001;&#x4E14;&#x4ECD;&#x7136;&#x5904;&#x4E8E;&#x6D3B;&#x52A8;&#x72B6;&#x6001;&#x7684;&#x89E6;&#x6478;&#x70B9;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x662F;&#x4E00;&#x4E2A;&#x7A7A;&#x6570;&#x7EC4;<code>[]</code>&#x3002;</li>
<li><code>changedTouches</code>&#xFF1A;<code>TouchList</code>&#x5B9E;&#x4F8B;&#xFF0C;&#x4EE3;&#x8868;&#x672C;&#x6B21;&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7684;&#x76F8;&#x5173;&#x89E6;&#x6478;&#x70B9;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x662F;&#x4E00;&#x4E2A;&#x7A7A;&#x6570;&#x7EC4;<code>[]</code>&#x3002;</li>
<li><code>ctrlKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A; Ctrl &#x952E;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>false</code>&#x3002;</li>
<li><code>shiftKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A; Shift &#x952E;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>false</code>&#x3002;</li>
<li><code>altKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A; Alt &#x952E;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>false</code>&#x3002;</li>
<li><code>metaKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A; Meta &#x952E;&#xFF08;&#x6216; Windows &#x952E;&#xFF09;&#x662F;&#x5426;&#x540C;&#x65F6;&#x6309;&#x4E0B;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;<code>false</code>&#x3002;</li>
</ul>
<h3 id="&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;">&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;</h3>
<p>TouchEvent &#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x5177;&#x6709;<code>Event</code>&#x5B9E;&#x4F8B;&#x7684;&#x6240;&#x6709;&#x5C5E;&#x6027;&#x548C;&#x65B9;&#x6CD5;&#xFF0C;&#x6B64;&#x5916;&#x8FD8;&#x6709;&#x4E00;&#x4E9B;&#x5B83;&#x81EA;&#x5DF1;&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;&#xFF0C;&#x8FD9;&#x4E9B;&#x5C5E;&#x6027;&#x5168;&#x90E8;&#x90FD;&#x662F;&#x53EA;&#x8BFB;&#x3002;</p>
<p><strong>&#xFF08;1&#xFF09;TouchEvent.altKey&#xFF0C;TouchEvent.ctrlKey&#xFF0C;TouchEvent.shiftKey&#xFF0C;TouchEvent.metaKey</strong></p>
<ul>
<li><code>TouchEvent.altKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x65F6;&#x662F;&#x5426;&#x6309;&#x4E0B;&#x4E86; Alt &#x952E;&#x3002;</li>
<li><code>TouchEvent.ctrlKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x65F6;&#x662F;&#x5426;&#x6309;&#x4E0B;&#x4E86; Ctrl &#x952E;&#x3002;</li>
<li><code>TouchEvent.shiftKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF1A;&#x8868;&#x793A;&#x89E6;&#x6478;&#x65F6;&#x662F;&#x5426;&#x6309;&#x4E0B;&#x4E86; Shift &#x952E;&#x3002;</li>
<li><code>TouchEvent.metaKey</code>&#xFF1A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x89E6;&#x6478;&#x65F6;&#x662F;&#x5426;&#x6309;&#x4E0B;&#x4E86; Meta &#x952E;&#xFF08;&#x6216; Windows &#x952E;&#xFF09;&#x3002;</li>
</ul>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x793A;&#x4F8B;&#x3002;</p>
<pre><code class="lang-javascript">someElement.addEventListener(<span class="hljs-string">&apos;touchstart&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;altKey = &apos;</span> + e.altKey);
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;ctrlKey = &apos;</span> + e.ctrlKey);
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;metaKey = &apos;</span> + e.metaKey);
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;shiftKey = &apos;</span> + e.shiftKey);
}, <span class="hljs-literal">false</span>);
</code></pre>
<p><strong>&#xFF08;2&#xFF09;TouchEvent.changedTouches</strong></p>
<p><code>TouchEvent.changedTouches</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;<code>TouchList</code>&#x5B9E;&#x4F8B;&#xFF0C;&#x6210;&#x5458;&#x662F;&#x4E00;&#x7EC4;<code>Touch</code>&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#xFF0C;&#x8868;&#x793A;&#x672C;&#x6B21;&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7684;&#x76F8;&#x5173;&#x89E6;&#x6478;&#x70B9;&#x3002;</p>
<p>&#x5BF9;&#x4E8E;&#x4E0D;&#x540C;&#x7684;&#x65F6;&#x95F4;&#xFF0C;&#x8BE5;&#x5C5E;&#x6027;&#x7684;&#x542B;&#x4E49;&#x6709;&#x6240;&#x4E0D;&#x540C;&#x3002;</p>
<ul>
<li><code>touchstart</code>&#x4E8B;&#x4EF6;&#xFF1A;&#x88AB;&#x6FC0;&#x6D3B;&#x7684;&#x89E6;&#x6478;&#x70B9;</li>
<li><code>touchmove</code>&#x4E8B;&#x4EF6;&#xFF1A;&#x53D1;&#x751F;&#x53D8;&#x5316;&#x7684;&#x89E6;&#x6478;&#x70B9;</li>
<li><code>touchend</code>&#x4E8B;&#x4EF6;&#xFF1A;&#x6D88;&#x5931;&#x7684;&#x89E6;&#x6478;&#x70B9;&#xFF08;&#x5373;&#x4E0D;&#x518D;&#x88AB;&#x89E6;&#x78B0;&#x7684;&#x70B9;&#xFF09;</li>
</ul>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x793A;&#x4F8B;&#x3002;</p>
<pre><code class="lang-javascript">someElement.addEventListener(<span class="hljs-string">&apos;touchmove&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-keyword">for</span> (<span class="hljs-keyword">var</span> i = <span class="hljs-number">0</span>; i &lt; e.changedTouches.length; i++) {
    <span class="hljs-built_in">console</span>.log(e.changedTouches[i].identifier);
  }
}, <span class="hljs-literal">false</span>);
</code></pre>
<p><strong>&#xFF08;3&#xFF09;TouchEvent.touches</strong></p>
<p><code>TouchEvent.touches</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;<code>TouchList</code>&#x5B9E;&#x4F8B;&#xFF0C;&#x6210;&#x5458;&#x662F;&#x6240;&#x6709;&#x4ECD;&#x7136;&#x5904;&#x4E8E;&#x6D3B;&#x52A8;&#x72B6;&#x6001;&#xFF08;&#x5373;&#x89E6;&#x6478;&#x4E2D;&#xFF09;&#x7684;&#x89E6;&#x6478;&#x70B9;&#x3002;&#x4E00;&#x822C;&#x6765;&#x8BF4;&#xFF0C;&#x4E00;&#x4E2A;&#x624B;&#x6307;&#x5C31;&#x662F;&#x4E00;&#x4E2A;&#x89E6;&#x6478;&#x70B9;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x793A;&#x4F8B;&#x3002;</p>
<pre><code class="lang-javascript">someElement.addEventListener(<span class="hljs-string">&apos;touchstart&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-keyword">switch</span> (e.touches.length) {
    <span class="hljs-comment">// &#x4E00;&#x6839;&#x624B;&#x6307;&#x89E6;&#x6478;</span>
    <span class="hljs-keyword">case</span> <span class="hljs-number">1</span>: handle_one_touch(e); <span class="hljs-keyword">break</span>;
    <span class="hljs-comment">// &#x4E24;&#x6839;&#x624B;&#x6307;&#x89E6;&#x6478;</span>
    <span class="hljs-keyword">case</span> <span class="hljs-number">2</span>: handle_two_touches(e); <span class="hljs-keyword">break</span>;
    <span class="hljs-comment">// &#x4E09;&#x6839;&#x624B;&#x6307;&#x89E6;&#x6478;</span>
    <span class="hljs-keyword">case</span> <span class="hljs-number">3</span>: handle_three_touches(e); <span class="hljs-keyword">break</span>;
    <span class="hljs-comment">// &#x5176;&#x4ED6;&#x60C5;&#x51B5;</span>
    <span class="hljs-keyword">default</span>: <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;Not supported&apos;</span>); <span class="hljs-keyword">break</span>;
  }
}, <span class="hljs-literal">false</span>);
</code></pre>
<p><strong>&#xFF08;4&#xFF09;TouchEvent.targetTouches</strong></p>
<p><code>TouchEvent.targetTouches</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;<code>TouchList</code>&#x5B9E;&#x4F8B;&#xFF0C;&#x6210;&#x5458;&#x662F;&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7684;&#x76EE;&#x6807;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x3001;&#x6240;&#x6709;&#x4ECD;&#x7136;&#x5904;&#x4E8E;&#x6D3B;&#x52A8;&#x72B6;&#x6001;&#xFF08;&#x5373;&#x89E6;&#x6478;&#x4E2D;&#xFF09;&#x7684;&#x89E6;&#x6478;&#x70B9;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">touches_in_target</span>(<span class="hljs-params">ev</span>) </span>{
  <span class="hljs-keyword">return</span> (ev.touches.length === ev.targetTouches.length ? <span class="hljs-literal">true</span> : <span class="hljs-literal">false</span>);
}
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x7528;&#x6765;&#x5224;&#x65AD;&#xFF0C;&#x662F;&#x5426;&#x6240;&#x6709;&#x89E6;&#x6478;&#x70B9;&#x90FD;&#x5728;&#x76EE;&#x6807;&#x5143;&#x7D20;&#x5185;&#x3002;</p>
<h2 id="&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7684;&#x79CD;&#x7C7B;">&#x89E6;&#x6478;&#x4E8B;&#x4EF6;&#x7684;&#x79CD;&#x7C7B;</h2>
<p>&#x89E6;&#x6478;&#x5F15;&#x53D1;&#x7684;&#x4E8B;&#x4EF6;&#xFF0C;&#x6709;&#x4EE5;&#x4E0B;&#x51E0;&#x79CD;&#x3002;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;<code>TouchEvent.type</code>&#x5C5E;&#x6027;&#xFF0C;&#x67E5;&#x770B;&#x5230;&#x5E95;&#x53D1;&#x751F;&#x7684;&#x662F;&#x54EA;&#x4E00;&#x79CD;&#x4E8B;&#x4EF6;&#x3002;</p>
<ul>
<li><code>touchstart</code>&#xFF1A;&#x7528;&#x6237;&#x5F00;&#x59CB;&#x89E6;&#x6478;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x5B83;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x53D1;&#x751F;&#x89E6;&#x6478;&#x7684;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x3002;</li>
<li><code>touchend</code>&#xFF1A;&#x7528;&#x6237;&#x4E0D;&#x518D;&#x63A5;&#x89E6;&#x89E6;&#x6478;&#x5C4F;&#x65F6;&#xFF08;&#x6216;&#x8005;&#x79FB;&#x51FA;&#x5C4F;&#x5E55;&#x8FB9;&#x7F18;&#x65F6;&#xFF09;&#x89E6;&#x53D1;&#xFF0C;&#x5B83;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x4E0E;<code>touchstart</code>&#x4E8B;&#x4EF6;&#x4E00;&#x81F4;&#x7684;&#xFF0C;&#x5C31;&#x662F;&#x5F00;&#x59CB;&#x89E6;&#x6478;&#x65F6;&#x6240;&#x5728;&#x7684;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x3002;&#x5B83;&#x7684;<code>changedTouches</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;<code>TouchList</code>&#x5B9E;&#x4F8B;&#xFF0C;&#x5305;&#x542B;&#x6240;&#x6709;&#x4E0D;&#x518D;&#x89E6;&#x6478;&#x7684;&#x89E6;&#x6478;&#x70B9;&#xFF08;&#x5373;<code>Touch</code>&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#xFF09;&#x3002;</li>
<li><code>touchmove</code>&#xFF1A;&#x7528;&#x6237;&#x79FB;&#x52A8;&#x89E6;&#x6478;&#x70B9;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x5B83;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x4E0E;<code>touchstart</code>&#x4E8B;&#x4EF6;&#x4E00;&#x81F4;&#x3002;&#x5982;&#x679C;&#x89E6;&#x6478;&#x7684;&#x534A;&#x5F84;&#x3001;&#x89D2;&#x5EA6;&#x3001;&#x529B;&#x5EA6;&#x53D1;&#x751F;&#x53D8;&#x5316;&#xFF0C;&#x4E5F;&#x4F1A;&#x89E6;&#x53D1;&#x8BE5;&#x4E8B;&#x4EF6;&#x3002;</li>
<li><code>touchcancel</code>&#xFF1A;&#x89E6;&#x6478;&#x70B9;&#x53D6;&#x6D88;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x6BD4;&#x5982;&#x5728;&#x89E6;&#x6478;&#x533A;&#x57DF;&#x8DF3;&#x51FA;&#x4E00;&#x4E2A;&#x6A21;&#x6001;&#x7A97;&#x53E3;&#xFF08;modal window&#xFF09;&#x3001;&#x89E6;&#x6478;&#x70B9;&#x79BB;&#x5F00;&#x4E86;&#x6587;&#x6863;&#x533A;&#x57DF;&#xFF08;&#x8FDB;&#x5165;&#x6D4F;&#x89C8;&#x5668;&#x83DC;&#x5355;&#x680F;&#xFF09;&#x3001;&#x7528;&#x6237;&#x7684;&#x89E6;&#x6478;&#x70B9;&#x592A;&#x591A;&#xFF0C;&#x8D85;&#x8FC7;&#x4E86;&#x652F;&#x6301;&#x7684;&#x4E0A;&#x9650;&#xFF08;&#x81EA;&#x52A8;&#x53D6;&#x6D88;&#x65E9;&#x5148;&#x7684;&#x89E6;&#x6478;&#x70B9;&#xFF09;&#x3002;</li>
</ul>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x4F8B;&#x5B50;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> el = <span class="hljs-built_in">document</span>.getElementsByTagName(<span class="hljs-string">&apos;canvas&apos;</span>)[<span class="hljs-number">0</span>];
el.addEventListener(<span class="hljs-string">&apos;touchstart&apos;</span>, handleStart, <span class="hljs-literal">false</span>);
el.addEventListener(<span class="hljs-string">&apos;touchmove&apos;</span>, handleMove, <span class="hljs-literal">false</span>);

<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">handleStart</span>(<span class="hljs-params">evt</span>) </span>{
  evt.preventDefault();
  <span class="hljs-keyword">var</span> touches = evt.changedTouches;
  <span class="hljs-keyword">for</span> (<span class="hljs-keyword">var</span> i = <span class="hljs-number">0</span>; i &lt; touches.length; i++) {
    <span class="hljs-built_in">console</span>.log(touches[i].pageX, touches[i].pageY);
  }
}

<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">handleMove</span>(<span class="hljs-params">evt</span>) </span>{
  evt.preventDefault();
  <span class="hljs-keyword">var</span> touches = evt.changedTouches;
  <span class="hljs-keyword">for</span> (<span class="hljs-keyword">var</span> i = <span class="hljs-number">0</span>; i &lt; touches.length; i++) {
    <span class="hljs-keyword">var</span> touch = touches[i];
    <span class="hljs-built_in">console</span>.log(touch.pageX, touch.pageY);
  }
}
</code></pre>




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